Physiological Effects of Lung Impedance Tomography-Guided and Plat Pressure-Guided Phigh During APRV in Patients With ARDS

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorXiaoJing Zou,MD

About this trial

This study aims to investigate the effects of EIT-guided and Pplat-guided Phigh settings on regional ventilation and perfusion in ARDS patients during APRV, while also examining the impact of different Phigh settings on gas exchange, respiratory mechanics, and hemodynamics.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Diagnosed with ARDS according to the 2023 global new definition of ARDS.

Age ≥ 18 years.

Disqualifiers

Severe chronic obstructive pulmonary disease, severe asthma, pulmonary bullae, pneumothorax, subcutaneous emphysema, mediastinal emphysema, etc. · Contraindications for EIT, such as chest wound dressing, pacemaker implantation, defibrillator use, etc.

Pulmonary interstitial disease.

Uncorrected shock of various types.

Intracranial hypertension.

Trial design

Design model

Crossover

Treatments tested in this trial

  • EIT-guided Phigh settings during APRV

    Device

    The Phigh level selected for the patients in the Intervention group was the intercept point of cumulated collapse and overdistension percentage curves, providing the best compromise between collapsed and overdistended lung.

Treatment groups

26 Participants
are divided into 2 treatment groups
Group A: Intervention groupExperimental treatment 1 intervention
Group B: Control groupNo intervention 0 interventions

Trial outcomes

Primary outcomes

1

The effects of Phigh guided by different methods on regional lung ventilation assessed by EIT

Time frame
1 Hour Post-Intervention

Secondary outcomes

1

Global inhomogeneity assessed by electrical impedance tomography

Time frame
1 Hour Post-Intervention
2

Center of ventilation assessed by electrical impedance tomography

Time frame
1 Hour Post-Intervention
3

ventilation/perfusion matching assessed by EIT

Time frame
1 Hour Post-Intervention
4

Respiratory system compliance

Tidal volume divided by plateau pressure

Time frame
1 Hour Post-Intervention

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

XiaoJing Zou,MD

Lead sponsor

Union Hospital, Tongji Medical College, Huazhong University of Science and Technology

Sponsor institution

Union Hospital, Tongji Medical College, Huazhong University of Science and Technology

Collaborator